We've written about these guys before, but here's a video that illustrates just how brainy crows are. This is a first-time experience for the crow; food in a basket in the tube that he can't reach; a straight piece of wire that doesn't help . . . until the crow takes it out, bends one end into a hook, then fishes out the basket and retrieves the tasty morsel. Lovely.
http://snipurl.com/me54x